import {z} from 'zod'

export type ClinVarLiteExportRequest = {variant_idx: number, hgvs_name: string, rationale: string, evidence_codes?: Array<string> | undefined, mode_of_inheritance: string, expert_review_confirmed: boolean, hgvs_validated: boolean, expected_classification: 'P' | 'LP' | 'VUS' | 'LB' | 'B', condition_id_type?: (string | null) | undefined, condition_id_value?: (string | null) | undefined, preferred_condition_name?: (string | null) | undefined, collection_method?: string | undefined, allele_origin?: string | undefined, affected_status?: string | undefined, number_of_individuals: number, citations?: Array<string> | undefined, gene_symbol?: (string | null) | undefined, local_id?: (string | null) | undefined, public_url?: (string | null) | undefined, variation_identifiers?: Array<string> | undefined, alternate_designations?: Array<string> | undefined, clinvar_accession?: (string | null) | undefined, record_status?: ('novel' | 'update' | null) | undefined};

export type CreateApiSessionsSessionIdClinvarLiteExportArgs = {session_id: string, body: ClinVarLiteExportRequest};

export type CreateApiSessionsSessionIdClinvarLiteExportOptions = {baseUrl: string, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const clinVarLiteExportResponse = z.object({package_name: z.string(), package_base64: z.string(), upload_files: z.array(z.string()), manifest: z.record(z.string(), z.unknown())});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Export one expert-reviewed variant as a ClinVar Lite package
 * 
 * POST /sessions/{session_id}/clinvar-lite/export
 */
export const createApiSessionsSessionIdClinvarLiteExport = async (args: CreateApiSessionsSessionIdClinvarLiteExportArgs, options: CreateApiSessionsSessionIdClinvarLiteExportOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/sessions/${encodeURIComponent(String(args.session_id))}/clinvar-lite/export${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(clinVarLiteExportResponse, await res.json())
};